1969 DATSUN B110 lock

ted

compare
valve

ttmmg
data
wIth
the
valve

I

ttmmg
diagram
to

ensure
that

begmmng
and

endmg
of
stroke
for
all

cylmders
are
com

plymg
with

specified
advance
and
retard

figures

Cylinder
Block

Check
the

cyhnder
head

v1sually
for
defects

such

as
cracks
and
flaws

Measure
the

top
of
the

cyhnder
block

cyhn

der
head

matmg
face
for

warpmg
If
the

warp

exceeds
the
hmlt
correct
1t

Measure
the

cyhnder
bore
for
out
of
round

and

wear
WIth
a
bore

gauge
If
wear
or

out
of
round
IS
exceSS1ve
rebore
the

cyhnder

walls

by
means
of
a

bormg
machme

Umt

degree

a

b
d
f

c
e

248
248
14
54
12

56

Standard
MaxImum

tolerance

Surface
flatness
less
than

o

0020
o
0039

m

Distortion
limIt
0
101010

00039
In

Standard
0051010

100020
In

or
less

Fig
36

Cylinder
block
surface
check
Bogioe

When
wear
or
out
of
round
1S
mmor
and

wlthm
the
hmlt
remove
the

step
from
the

top

most

portIOn
of
the

cyhnder
by
the
use
of
a

ridge
reamer
or
other
slm11ar
tool

Piston
Piston
Pin
and
Piston

Ring

Check
for
seIzure
scratch

and
wear

Replace

as

reqUIred

Measure
Side
clearance
of
each

piston
rmg

and

ring
groove
WIth
the

piston
rmg
mstalled

on
the

piston
Clearance
of
a
new

pIston
and

p1ston
rmg
should
be
as
follows

Place
the

rmg
at
the
bottom
of
the

rmg

traveled

part
of

cyhnder
bore
m
wh1ch
It
wlll

be
used

Wear
limIt

02mm

0
0079
In
I

Fig
37

MeaSUring
the
cylinder
bore

SAO

I
O

I
f

Fig
38
Piston
and

connecting
rod

assembly

II

BogiDe

27
00
to

27
05
1063
to

1
0651

1910
to
1940
1910
to

19
40

0752
to

07641
0752
to
0

7641

49951
to
49
964

dl

11
9666
to
1
9671

ALL
MAIN
BEARING

JOURNALS
34
97
to

35
03

1
377
to

1

3791

44
961
to
44
974
dl

1
7701
to
1
7706

ALL
CRANK
PINS

UNIT
mm
m

Fig
45
Crankshaft

S

tanddrd
MaXimum

Taper
out
of
round

of

uank

Journal
and

o
0004
00012

crank

pm

Standard
MaxJmum

Crankshaft

bend

m

o
0006
o
0020

Install

connecting
rods
wIth

bearings
on
to

the

corresponding
crank

pinS
and
measure
the

thrust
clearance
If
the
measured
value
ex

ceeds
the
hmlt

replace
such

connecting
rod

Crankshaft

Check
the
crankshaft

Journal
and
crank

pin

for
scars
biased
wear
and
cracks

Repair
or

replace
as

reqUired

Check
the
crankshaft
for
bend
If
the
bend
ex

ceeds
the
hmlt

replace
the
crankshaft

Note
When

me
8

sJlring
jJ
nc
ldtSe
dial

gauge

14
Standard
Llmtl

Crankshaft
free
end

play
m
o
0020
to
0
0059
00118

EM141

Fig
46

Plasllgage

Bend
value
is
a
half
of
the

readmg
ob

tamed
when
the
crankshaft
is
turned

once
with
the
dial

gauge
applied
to
Its

center

journal

After

regrInding
the
crankshaft
fimsh
It
to

the

necessary
size

by

uSing
an

adequate
un

derSize

bearing
according
to

the
extent
of

reqUIred
repair

Install
the
crankshaft
In
the

cyhnder
block

and

measure
th
the
thruht
clearance

Check
the

main
drIve
shaft

pilot
beating
at

the

rear
end
of
the
crankshaft
for

wear
and

damage

Replace
It
1f

any
defects

are
detected

Bushing
and

Bearing

Check
all

bearIngs
and

bushings
for

seIzure

melt

scar
and
burr

Rgj
Jlace
bushings
If

any
defects
are
detected

Wipe
off
011
and
dust

especially
the

rear
of

the

bushing

Set
the

main

bearing
on
the

cap
block

BDgiDe

Fig
49
Valve
installatIon

STl
303001

EM156

Fig
50
Piston

pin
installation

FIg
51
Piston
and

connecting
rod

assembly

Assemble
the

parts
In

order
valve

sprmg

spnng
retamer
valve
collet
and
val

ve
rocker

gUIde

28
Note
Make
sure
that
the
valve
face
is

clear
from

foreign
matters

Piston
and

Connecting
Rod

Assemble

pIston
piston
pm
and

connecting

rod
assorted

accordmg
to

cyhnder
number
for

every
cylInder

Notes
a
P1ston

pin
is

press
fitted
to

the

connectmg
rod

tightly
and

fitting
force
is

from
1
to

3
tons
When

fitting
piston
pin

speCIal
tool
must

be
used

When

pressmg
the

piston
pin
into
the

con

necting
rod

apply
engine
oil
to
the

pin

and
the
small
end
of
the

connecting
rod

b

Arrange
the

connecting
rod
so
that
the

oil

Jet
of
the

connecting
rod

large
end
is

directed
toward
the

right
side
of
the

cylinder
block

InstallIng
piston
rmgs

Install
the

top
and
second

rings
In

nght

pOSItIOns
so
that
the
marks
are
faced

upward

FIX

bearings
on
the

connecting
rod
and
the

connecting
rod

cap

Note
Clean
the
back
side
of
the

bearmg

carefully

Engine

Set
the

cyhnder
block
on
the

workmg
stand

WIth
the

engine
bottom
faced

upSIde

Install
the
valve
hfters
Install
the
camshaft

and
retain

by
the
camshaft
locate

plate

Locate

plate
tightemng
torque
IS
2
9
to
3
6

ft
lb

Fig
52

Installing
camshaft
locate

plate

Bogine

Note

Set
the

locate

plate
so
as
the

LOWER

mark

comes
to

the

engine
bot

tom
side

Set
the

maIn

bearIngR
on
theIr

posItIOns
on

the

cylinder
block

Notes
a

The
center

bearmg
No
3

bearmg
is

a

flanged
type
for
thrust
force

b
Two

lOner

bearmgs
No
2
and
No
4

are

of
the
same

type

c
The
front

bearmg
No
1
IS
the
same

type
as
the

rear

bearmg
No
5

d

All

bearings
except
for

No
I

bearing

are

interchangeable
between

upper
and

lower

bearings

Apply
engIne
OIl
to
the

mam

bearIng
surfaces

on

both
sIdes
of
the

cyltnder
block
and

cap

Fig
53
Mam

bearing
caps

Fig
54
Crankshaft
end

play
check
Install
the

crankshaft

Install
the

mam

bearmg
cap
and

tighten
the

bolts
with

specified
torque

Tlghtemng
torque

36
to

43
ft
Ib

Notes
a

Arrange
the

parts
so
that
the

arrow
mark
on

the
bearing
cap
IS
faced

toward

the
front
of
the

engine

b
Prior
to

tightening
the

bearing
cap

bolts

place
the

bearing
cap
at
a

proper

posItIon

by
shlftmg
the

crankshaft
in
the

axial

direction

c

Tighten
the

bearmg

cap
bolts

gradually

in

separatmg
two
to

three

stages
and
out

wardly
from
the

center

bearing

d
After

securing
the

bearing
cap
bolts

ascertam

that
the
crankshaft

can
be

easily
rotated

Make
sure
that
the
crankshaft

end

play
IS

correct

Crankshaft
end

play

o
0020
to

0
0059
In

I
nstalI
the

rear
011
seal

Install
the

flywheel

securely
USIng
the

lock

washers
and

tighten
the
bolts
with

specIfied

torque

Tlghtemng
torque

47
to
54

ft
Ib

Rotate
the

engine
a

quarter
turn

and
mstall

the

piston
rod

assembly

Notes

a
Insert
the

pistons
in
the

corresponding

cyhnders

b

Apply
engine
oil
to

parts
as

required

c

Arrange

pistons
so

that
the
F
mark

on
the

piston
IS
faced
to

the
front
of
the

engine

d
Install

piston
rings
at
18
Y
to

each
other

avoIdIng
to
fit

them
In
the

thrust
and

pIston

pIn
aXial

directIOns

27

BDgiDe

Install
the

new
011
seal
to
the
front
cover
The

front

cover
011
seal
should
be

replaced
when

the
front

cover
IS
disassembled

Install
the
front

cover

applYing
the

seahng

agent
to
both
surfaces
of
the

gasket

Tlghtemng
torque

36
to

5
1

ft
lb

Install
the
ot
strainer
and
the
011

pan
uSing

the

gasket

Apply
seahng
agent
on
both
surfaces
of
the

gasket
especIally
on
the
front
and
rear

por

tlOns
of
the
011

pan

011

pan
tlghtemng
torque

2
9
to
4
3
ft
lb

Invert
the

engine
and
Install
the

cyhnder

head

assembly
and

gasket

Note

Apply
sealing
agent
overall
the

cylinder
block
surface
Place
the

gasket

on
It

and

apply
sealing

agent
to
the

gasket
top

Tighten
the

cylinder
head
bolts
to
the

peclfied
torque

Cylmder

bloLk

Side

Stecl

heet

Sealmg
agent
not

required

Cylinder

head

Side

Jomt

sheet

Remarks
Install

WIthout

applymg
sealing
agent

Be

careful
not
to

damage
the

push
rod
Side

because
thIS
SIde
has

prevIOusly
been

provIded

WIth

sealing
agent

J

30
v
o
The

cyhnder
head
uses
two

types
of
in

stallatIOn
bolt
one
IS
for
the
center

nght
SIde

and
the
other
IS
for
all
other

posItIOns
The

bolt
for
the
center

nght
Side
has

a
I

mark

on
ItS
head

L

1

Bolt
number
hh
nlltilatlOn
rJ

Dlaml
tl
f

j
031111003189
T

T
1M

E

u

pt
lor

CD

03492
to

0
3555
ot
rhJ

FIg
65
Head
bolt
segment

Fig
66
Tlghtenmg

sequence

O

rmg

4

ItI
CYlmder
head

Cylinder
h
ad

gasket

Cylinder
block

o

rtng
To
be
mserted

mto
hole

m

cylmder
block

llectrical

Spt

When

Harting
lWltch

I

IgllltlUn
iwltch

FJuhy

rctuflung

Repldce

set
10
OFf

the
slJrl

motor

do
nut
MJgnclK
Wltdl
Seiad

contJr
l

Repldcc

IIlg

I

op

Shorted
1

011

Replace

Faulty
plunger

slidmg

Replace

StJflillg
motOr

Pillion
does
not

dlsengJge
from
the

Repair
or

replace

nng
gedr

smoothly

Pinion

sphne
dot
110t

disengage

Repan
or

replJce

moothly

SCl7Cd

pinIOn
metal

Replace

REGULATOR

Description

The

regulator
basically
consists
of
a

voltage

regulator
and
a

charge
relay
The

voltage

regulator
has
two
sets

of
contact

poInts
a

lower
set

and

upper
set
to

control
alternator

voltage
An

at
mature

plate
placed
between

the
two
sets
of
contacts

moves

upward
or

downward
or

Vibrates
The
lower
contacts

when

clo
ed

complete
the
field
CIrCUIt

dIrect

to

glOund
and
the

upper
contacts
when

closed

complete
the
field
CIrCUIt
to

ground

through
a
resIstam
e

field
COl

and

produces

alternator

output

The

charge
lelay
IS
SimIlar
In

constructIOn
to

the

voltage
regulator

When
the

upper
contacts

are
closed

IgnitIOn

warnIng
lamp
goes
on

As
for
the

constructIOn
the

voltage
regulator

IS

very
SImIlar
to
the

charge

relay
as
shown
In

Figure
78
I

POlnlsap

2
lower

nt
CI

3

Arm2fu1C

4

COfe

ap

5

Yokeg
lp

6

Connecting
pnn
t

T
Yolce

8

AdJu
fln

rcw

9
Lock
nul
Crew

13

4mmlOlli15
nldll

SCrew

14
RlaCI
I

15

Upper
Rlact

a
COlUlruci
o
o

voltage
ulato

O
0
1

EEOSJ
I
Point

gap

2
Char

Clay
nl3el

3

ConMctmg
pun

4

Armature
nl
daa

5
Core

ap
re

6
Yoke

Jap
14
4
mm
0
1575
n
dla

7
Yoke

rew

8

AdJu
llng
Cre
IS
nfaC

t
e1

9
Voila

ere
ulal0t

l
ontal
1

b

COfUtruclton

of

cha
rt
ay

FIg
n
View
of

removing
cover

FIg
78
Structural

view

81

Fuel

Sptem

The

power
valve
mechanIsm

IS
of
a
vacuum

actuated
boost

type
and

Improves
hIgh
speed

drivIng

The
throttle

opener
control

system
Incor

porates
a
servo

diaphragm
The

servo

dIaphragm
helps
open
the
throttle
valve
at
a

decreasIng
speed
so
as
to
reduce
the
emISSIOn

of

hydrocarbons
to
a
minImum

An
antI

dlesehng
olen01d
IS
used
as

a
means

of

preventIng
dlesehng
When
the

IgnItIOn

key
IS
turned
ofT
the
fuel

passage
Involved
In

the
slow

system
IS
closed
and
the
fuel

supply

IS
shut
down

completely

In
the
chok
mechanIsm
an
electric

automatIc
choke
IS
used
to

automatically
con

trol
the
choke
valve

operatIOn
durIng
the

war

m

up
of
the

engIne

The
carburetor
for
automatic
transmiSSIOn
IS

eqUIpped
WIth
so
called
dash

pot
that
IS
It

makes
smooth

deceleratIng
WIthout

engIne

stall
at

any
operatIng
conditIOn

These
carburetors

are

qUIte
SImIlar
In

ap

pearance
as

explaIned
above

except
the
dash

pot
for
the
automatIc
transmISSion
model

Adjustment

Idhng
Adjustment

Idle
mixture

adjustment
requIres
the
use

of
a

CO
meter
When

prepatlng
to

adjust
Idle
mIxture
It
IS
essentIal
to
have
the
meter

thoroughly
warmed
and
cahbrated

Warm

up
the

engIne
suffiCiently

ContInue

engme
operatIOn
for

one
mmute
un

der

ldhng
speed

Adjust
throttle

adjustIng
screw
so
that

engme

speed
IS
800

rpm
m
N

pos1tIon
for

automatic
transmiSSIOn

Check

IgmtlOn
tl
If

necessary

adjust
It
to
the

speCificatIOns

IgnItIOn
tImlo
800
rpm

Adjust
Idle

adJustmg
screw
so
that
CO

percen

tage
IS
1

5
0
50
at
800
ns

a
On
automatIc

transmiSSIOn

eqUipped
model
check
must
be

done
In
the
D

poSItIon
Be
sure
to

apply

parkmg
brake
and
to
lock
both
front
and
rear

wheels
With
wheel
chocks

b
Hold
brake

pedal
while

steppIng
down
on

accelerator

pedal
OtherWise
car
Will
rush
out

dangerously

On

automatIc
transmiSSIOn

eqUIpped
model

make

sure
that
the

adjustment
has
been
made

With
the
selector
lever
In
N

posItIon

And
then
check
the

specificatIOns
With
the

lever
In
D

pOSitIOn
Insure
that
CO

percent

and
Idle

speed
are
as
follows

Idle

rpm
650

for
Manual
transmISSion

for
Automatic
transmISSion

Fig
91
External
view
of
carburetor

3

Fuel

Sptem

ted

on
the
car
If
the
throttle
valve
fails
to

fully
open
the
unIoader
becomes

inoperative
resulting
in

poor
ac

celleration
after
the

engine
is

started
Note
Use
an
accurate

measuring
in

strument
such
as
a
wheatstone

bridge

B1
metal

cover

settmg

BL
metal

Settmg

Mea
urement
of
bl
metal
heater
resistance

Install
the
bl
metal

cover
m

place
on
the
car

buretor
Make
sure
that
the
resIstance
across

the
termmal
and
the
carburetor

body
IS
m
the

range
from

8
6
to
0
0
ohms
Measure
the

resIstance
without
electnc
current

through

the
heater
and
at
about
70
F
Postllon
the
bl
metal

cover
until
the
mdex

mark
1S

altgned
at
the
middle

pomt
of
the
scale

26
mm
I
024

m
dlJ

30
m
1
181
In
dlJ

Connectml
rod

Secondary
COnnCl

lms

lever

Throltle
lever
4

Secondary
throttle

vaJve

5
Pnmary
throttle
valve

6

Throttle
chamber

Fig
98
Settmg
bl
metal
cover

Fig
99
AdJustmg
mterlock

opening
Pnmary
and
secon

dary
throttle
valves

Fig
100

AdJustmg
dash

pot

17